(8R,9S,13S,17R)-13-Methyl-7,8,9,11,12,13,16,17-octahydro-6H-cyclopenta[a]phenanthrene-3,17-diol 在
间氯过氧苯甲酸 作用下,
以
氯仿 为溶剂,
以44%的产率得到(8R,9S,13R,14R,15S,17R)-13-Methyl-6,7,8,9,11,12,13,15,16,17-decahydro-20-oxa-cyclopropa[14,15]cyclopenta[a]phenanthrene-3,17-diol